Linux

Ask something
Discussion Locked

Error in outgoing mail

0 helpful
9 replies

by man_simon

Closed to new repliesThis discussion is closed. It stays readable, but it takes no new replies.

I'm having a problem with sendmail and outlook. It seems that if I try to send mail with outlook, it fails.

The error message (from outlook) says that relaying is denied. Quote:
"The message could not be sent because one of the recipients was rejected by the server. The rejected e-mail addresswas 'scott@killen.homeip.net'. Subject 'test', Account: 'killen2.homeip.net', Server:
'killen2.homeip.net', Protocol: SMTP, Server Response: '550 5.7.1 ... Relaying
denied', Port: 25, Secure(SSL): No, Server Error: 550, Error Number: 0x800CCC79"

But if i telnet to port 25 I can type in the same information and it works fine.

Also, when I telnet in it says it is running ESMTP.

Is this a problem with sendmail or a problem with outlook, and how do i fix it?

9 replies

by maxwell edison

It may be a simple setting in Outlook.

Select your email account and click the Properties button.

Check the box that says "My server requires authentication".

Maxwell

by theresa jones

Is your ISP the same as your Domain Name server? You may have to change your outgoing mail server in Outlook to your ISP's server - I had the same problem with MSN as my ISP. I was not allowed to send my outgoing mail through my domain mail. I had to set my outgoing server to smtp.email.msn.com and then ALSO setup the 'my server requires authentication' tab with my msn information. Hope this helps.

by rouse

Be sure to check that you have entries in your /etc/mail/relay-domains:
yourdomain.com
192.168.1 (no trailing period)

I assume all your client pcs are using class c ip, like 192.168.1.x

Hope this fixes it.

by servermonkey

In /etc/mail/sendmail.mc (on a Red Hat box) there is a line that you need to comment out to allow the server to accept mail from the network for relaying. After you comment out that line, run
m4 /path/to/sendmail.mc > /path/to/sendmail.cf

HTH
Jeff
RHCE 807302635705828

This discussion is closed to new replies.